9980225 has 12 divisors (see below), whose sum is σ = 13027440. Its totient is φ = 7563600.

The previous prime is 9980221. The next prime is 9980227. The reversal of 9980225 is 5220899.

It is not a de Polignac number, because 9980225 - 2² = 9980221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9980221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10031 + ... + 10980.

It is an arithmetic number, because the mean of its divisors is an integer number (1085620).

Almost surely, 2^9980225 is an apocalyptic number.

9980225 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9980225 is a deficient number, since it is larger than the sum of its proper divisors (3047215).

9980225 is a wasteful number, since it uses less digits than its factorization.

9980225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21040 (or 21035 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 9980225 is about 3159.1494108383. The cubic root of 9980225 is about 215.3013621366.

The spelling of 9980225 in words is "nine million, nine hundred eighty thousand, two hundred twenty-five".